FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
Courtesy of Operation CHARM: Car repair manuals for everyone.

Fuel Always Rich

Pinpoint Test 7
Components controlled by the MCU System in this Pinpoint Test are the EGO Sensor, the MCU Module, and the Fuel Control Solenoid. The components that are not directly controlled by the MCU System during this Pinpoint Test but could possibly cause a Service Code fault are as follows:

^ Malfunctioning Carburetor
- High Float Level
- No Power to Choke Plate
^ Spark Plugs Misfiring
- Coil
- Distributor
^ Restricted Air Cleaner
^ Restricted PVS
^ Air Pump Not Working
- Malfunctioning Pulley
- Broken Belt(s)
^ Throttle Kicker Always On


NOTE: Virtually anything that adds fuel or restricts air should be investigated.



Fuel Always Rich
Pinpoint Test 7



Fuel Always Rich
Pinpoint Test 7